Quarterly report pursuant to Section 13 or 15(d)

Borrowings - Credit Agreements (Details)

v3.21.4
Borrowings - Credit Agreements (Details) - USD ($)
9 Months Ended
Nov. 30, 2021
Nov. 30, 2020
Feb. 28, 2021
Oct. 31, 2017
Schedule of Debt [Line Items]        
Short-term borrowings $ 243,000,000.0   $ 0  
Partial prepayment 1,363,500,000 $ 2,214,000,000    
2019 Five-Year Term Facility | Unsecured debt        
Schedule of Debt [Line Items]        
Debt instrument, face amount 491,300,000      
Unsecured debt $ 300,000,000.0      
Interest rate 0.70%      
Partial prepayment $ 142,100,000      
2019 Five-Year Term Facility | Unsecured debt | LIBOR        
Schedule of Debt [Line Items]        
LIBOR margin 0.63%      
Revolving credit facility        
Schedule of Debt [Line Items]        
Debt instrument, face amount $ 2,000,000,000      
Short-term borrowings $ 0      
Interest rate 0.00%      
Remaining borrowing capacity $ 1,744,800,000      
Revolving credit facility | LIBOR        
Schedule of Debt [Line Items]        
LIBOR margin 0.00%      
Letters of credit        
Schedule of Debt [Line Items]        
Debt instrument, face amount $ 200,000,000      
Outstanding letters of credit 12,200,000      
Commercial paper        
Schedule of Debt [Line Items]        
Debt instrument, face amount 243,000,000     $ 2,000,000,000
Short-term borrowings $ 243,000,000   $ 0  
Interest rate 0.30%